Help! PC problem

[von Manstein]

Well, I've put more RAM, but one of the pieces was damaged. I had very often blue screen. It even damaged system. So I've removed bad RAM piece and reinstall whole system.

I have Vista 64-bit with ALL updates and Microsoft Office Outlook, Excel and Word with all updates as well.
I use Alcohol52% for virtual DVD drive.

So I have newest drivers, I still have 14 GB free space on system Drive and game is freshly installed.

The problem is only when CS is running. Other games works fine.

Like I said, I remember that two years ago I had the same problem but not so often. Now is almost every time.